package demo3;

interface IA {
    void testA();
}
interface IB {
    void testB();
}
interface IC extends IA,IB {
    void testC();
}

class TestDemo implements IC {
    @Override
    public void testC() {
        System.out.println("testC");
    }

    @Override
    public void testA() {
        System.out.println("testA");
    }

    @Override
    public void testB() {
        System.out.println("testB");
    }
}

public class Test {
}
